just bought this car for my daughter and the temp was warm when i bought it. i took it to get tires on it at the service center and had them run diagnostics on it and the only codes that came on then were for the cvvt which is leaking oil and the oxygen sensors. sense been about 2 weeks and had first cold snap, we then encountered a no crank no start condition, with the flashing arrow. i did some research and the pnp switch kept coming come so we replaced it. the car immediately started up in park and neutral drove fine but when we did this the weather was warm 50 ish, the car has been driving fine then this weekend temp dropped to 27 degrees and had the same no start no crank condition, the geatr shift button felt like it was sticking a little and i sprayed some silicone in there, the, but the car never did start, the next day temp was about 5o ish and my wife started it up with no problems but she did have the flashing arrow. drove it for 2 -3 days and was fine. i drove it to work tonight to have a mechanic to verify we were ordering the right cvvt and the car started on all three of my breaks at work. then this morning it was below 30 and had the same problem again. we ran it the gear shift back and forth a quite a phew times tapped on relays checked fuses, tapped on starter and nothing. stuck in south carolina all iput appreciated

 

Checked your intake air temp sensor? IAT sensor.

 

no that hasnt been brought up thank you very much, is there a way to test it? and do you know if that part is compatible with any other volvos? i have access to a junk yard at least for testing purposes if i need parts.
thank you for responding!! the car is still stuck at work and getting picked up today ill be sure to have that person check that. ill let you know

 

how would the IAT keep the car from starting? just trying to learn

 

If faulty especially in colder weather it may be affecting the fuel mixture / timing enough to cause starting problems.

 

I had a cranking problem with my 2000 S40, if it was colder (40s-50s) it would crank forever before starting, but if the car was warm it wasn't nearly as long. It turned out to be my fuel pressure regulator. I purchased the car in the last 3 months and chaned the regulator right away so I don't know what it would have done in the cold. It isn't a cheap fix, about $200, if you can do the work yourself.

I have no idea if this is the same problem, but when I bought my car it was throwing similar codes, nothing that directly pointed to the FPR.

 

Is well worth checking your fuel pressure.
Should be about 44 PSI.
Also try a cold start with the MAF unplugged and see if any change to situation.
Checks that cost nothing and way cheaper than guessing with new parts in vain.

 

Welcome to the forum Ryan

Please post questions about your car in the proper sub forum.

 

When the gear shift button sticks the problem is at the base of the shifter, not the top part with the button. Notice where the cup holder is located right above the shifter? Drinks will spill and leak down onto the base area causing the solenoid at the base to stick. To fix this you remove part of the plastic surrounding the shifter base and spray some lube on the solenoid and shifter linkage. Pull up the rubber mat under the radio. Use an allen wrench or similar to lift the plastic piece that allows access to the shifter linkage.